If the vibrational frequency of H³⁵Cl is 8.66×10¹³ Hz, what do you think the vibrational frequency of H³⁷Cl would be?

Question

Quizplus · Accepted Answer

The vibrational frequency of a diatomic molecule is inversely proportional to the square root of its reduced mass. The reduced mass of H³⁵Cl is 1.626×10^-27 kg, and the reduced mass of H³⁷Cl is 1.636×10^-27 kg. Therefore, the vibrational frequency of H³⁷Cl would be 8.66×10¹³ Hz / √(1.626×10^-27 kg / 1.636×10^-27 kg) = 8.20×10¹³ Hz.

If the Vibrational Frequency of H35Cl Is 8

If the Vibrational Frequency of H³⁵Cl Is 8